Home / 28,728.02-39,644.28-16,152.77

Finding the Fourth Proportional to 28,728.02, 39,644.28 and 16,152.77

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Solution

The fourth proportional to 28,728.02, 39,644.28 and 16,152.77 is: 22,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,728.02 : 39,644.28 = 16,152.77 : x
  2. Step 2: Convert to fraction form
    28,728.02/39,644.28 = 16,152.77/x
  3. Step 3: Cross multiply
    28,728.02x = 39,644.28 × 16,152.77
  4. Step 4: Simplify right side
    28,728.02x = 640,364,738.43
  5. Step 5: Solve for x
    x = 640,364,738.43/28,728.02
  6. Step 6: Final answer
    x = 22,290.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.